3 years ago

10. Name THREE conductors and insulators with examples from everyday use.

Physics

1 answer:

Anna35 [415]3 years ago

7 0

Answer:

Explanation:

Some common conductors are copper, aluminum, gold, and silver. Some common insulators are glass, air, plastic, rubber, and wood.

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You have a grindstone (a disk) that is 98.0 kg, has a 0.335-m radius, and is turning at 100 rpm, and you press a steel axe again

Alika [10]

Answer:

$a=0.276$

Explanation:

From the question we are told that:

Mass $m=98.kg$

Radius $r=0.335$

Angular velocity $\omega=100rpm$

Radial force of $F_r=23.6 N.$

Kinetic coefficient of friction $\mu=0.192$

Generally the equation for Kinetic Force is mathematically given by

$F_k=\mu.F_r$

$F_k=0.192*23.6$

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Generally the equation for Torque on Center is mathematically given by

$Ia=f_k*r$

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Therefore

$a=\frac{2f_k}{Mr}$

$a=\frac{2*4.5312}{98*0.335}$

$a=0.276$

Therefore Angular acceleration of the grindstone is

$a=0.276$

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Why might we expect venus and earth to be similar?

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